<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <button id="btn">页面跳转</button>
</body>
<script>
    //url格式
    /**
     * 协议//域名（主机端口）/资源路径?查询参数
     * protocol://hostname[:port]/path?query
    */
    /**
     * js实现页面的跳转过程
     * window.location.href = "";
    */
    var btn = document.getElementById("btn");
    btn.onclick = function(){
        // window.location.href = "http://www.baidu.com";
        window.location.href = "./demo13.html?username=zhangsan&age=20";
        //?username=zhangsan&age=20
    }
</script>
</html>